Calendar Events

List of 3 events.

  • Aug

    Back to School Dance

    Safari theme! All SJ23 students, come join the fun. Tickets at the door. If you dress in the theme of the dance, tickets are $5. If in regular clothing, tickets are $8. 7-10 p.m. in the Student Center. Lock-in from 7:30-9:30 p.m.
  • Aug


  • Aug


Featured Stories

List of 2 news stories.

  • 15th Anniversary!

    This is our 15th anniversary year! We have so many wonderful community events planned this year. Stay tuned...
  • Parent Back to School Dinner

    All parents are invited to the Back to School Spaghetti Dinner on Wednesday, August 28, 6:30-8:30 p.m. in the Student Center. Please rsvp to by August 22. 
Parare Mente et Corde

St. John XXIII College Preparatory

1800 W. Grand Parkway N., Katy, Texas 77449
Fax: 281.693.1001

Our Mission
We prepare the hearts and minds of our students to serve God and others.